One vertex per element, one color per generator, with an edge from x to x·s.
(1,2,6,7)(3,10,9,5)(4,8,12,14)(11,16,15,13)(17,18,23,28)(19,29,33,40)(20,34,37,43)(21,26,22,27)(24,32,41,31)(25,38,44,36)(30,42,35,39)(45,47,48,46)(1,3,5,2,6,9,10,7)(4,11,13,8,12,15,16,14)(17,19,22,32,23,33,21,31)(18,24,26,40,28,41,27,29)(20,35,38,46,37,30,36,47)(25,42,43,45,44,39,34,48)(2,7)(3,9)(8,14)(11,15)(17,20,23,37)(18,25,28,44)(19,30,33,35)(21,36,22,38)(24,39,41,42)(26,43,27,34)(29,45,40,48)(31,46,32,47)(1,4,6,12)(2,8,7,14)(3,11,9,15)(5,13,10,16)(17,21,23,22)(18,26,28,27)(19,31,33,32)(20,36,37,38)(24,40,41,29)(25,43,44,34)(30,46,35,47)(39,48,42,45)(4,12)(8,14)(11,15)(13,16) involution — undirectedA Cayley diagram is a choice, not a fact about the group. Another drawing of this group — in a book, or on a different generating set — may look nothing like this one.